<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script>
    function foo(){
        console.log(arguments)//对象，不是数组
//        console.log(arguments.slice());
        //借助数组slice方法，用在augruments对象上
        var b = [].slice.call(arguments,1);
        console.log(b)
    }

    foo('aa','bb','cc')
</script>
</body>
</html>